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  • SDM530-Mbus 100A 3Ph/4W Multi Function Energy Meter With M-Bus Communication

    • Measures kWh Kvarh, KW, Kvar, KVA, P, F, PF, Hz, dmd, V, A, etc. 
    • Bi-directional measurement IMP & EXP
    • Two pulse outputs
    • Mbus communication
    • Din rail Mounted
    • 100A direct connection
    • Class 1.0 accuracy   
    • 7 modual width
    • Description
    • Diagram
    • Manual Download
    Introduction
    The SDM530-Mbus measures and displays the characteristics of three phase four wires (3p4w) supplies, including voltage, frequency, current, power, active and reactive energy, imported or exported. Energy is measured in terms of kWh, kVArh. Maximum demand current can be measured over preset periods of up to 60 minutes. In order to measure energy, the unit requires voltage and current inputs in addition to the supply required to power the product.
    SDM530-Mbus supports max. 100A direct connection, saves the cost and avoid the trouble to connect external CTs, giving the unit a cost-effective and easy operation. Built-in interfaces provides pulse and Mbus outputs. Configuration is password protected.

    Measured Parameters
    The unit can monitor and display the following parameters of four phase four wires (3p4w) supply.
    Voltage and Current
    Phase to neutral voltages 176 to 274V a.c.
    Power factor and Frequency and Max. Demand
    Frequency in Hz
    Instantaneous power:
    Power 0 to 99,000 W
    Reactive Power 0 to 99,000 VAr
    Volt-amps 0 to 99,000 VA
    Maximum demanded power since last Demand reset Power factor
    Maximum neutral demand current, since the last Demand reset
    Energy Measurements
     Imported active energy        0 to 9999999.9 kWh
     Exported active energy        0 to 9999999.9 kWh
     Imported reactive energy     0 to 9999999.9 kVArh
     Exported reactive energy     0 to 9999999.9 kVArh
     Total active energy             0 to 9999999.9 kWh
     Total reactive energy           0 to 9999999.9 kVArh

    Accuracy
     Voltage                            0·5% of range maximum
     Current                            0·5% of nominal
     Frequency                        0·2% of mid-frequency
     Power factor                     1% of unity (0.01)
     Active power (W)               ±1% of range maximum
     Reactive power (VAr)          ±1% of range maximum
     Apparent power (VA)          ±1% of range maximum
     Active energy (Wh)            Class 1 IEC 62053-21
     Reactive energy (VARh)        ±1% of range maximum
    Interfaces for External Monitoring
    Three interfaces are provided:
     an MBus communication channel that can be programmed for MBus EN13757-3 protocol
     an Pulse output(Pulse 1) indicating real-time measured energy.(configurable)
     an Pulse output(Pulse 2) 400imp/kWh    
    The Mbus configuration (Baud rate etc.) and the pulse output assignments (kW/kVArh, import/export etc.) are configured through the Set-up screens.

    Pulse Output
    The unit provides two pulse outputs. Both pulse outputs are passive type.
    Pulse output 1 is configurable. The pulse output can be set to generate pulses to represent total / import/export kWh or kVarh.
    The pulse constant can be set to generate 1 pulse per:
    0.01 = 10 Wh/VArh
    0.1 = 100 Wh/VArh
    1 = 1 kWh/kVArh
    10=10Wh/kVArh
    100 = 100 kWh/kVArh
    1000= 10000 kWh/kVArh
    Pulse width: 200/100/60ms
    Pulse output 2 is non-configurable. It is fixed up with active kWh. The constant is 1000imp/kWh.

    MBus Output for EN_13757-3
    For MBus EN13757-3, the following MBus communication parameters can be configured from the Set-up menu:
    Baud rate 300, 600, 1200, 2400, 4800, 9600
    Parity none (default)/odd/even
    Stop bits 1 or 2
    MBus network primary address nnn – 3-digit number, 001 to 250
    MBus network secondary address 00 00 00 01 to 99 99 99 99(The secondary address can not be setted directly on meter, but can be done via Mbus communication)

     Reference Conditions of Influence Quantities
    Influence Quantities are variables that affect measurement errors to a minor degree. Accuracy is verified under nominal value (within the specified tolerance) of these conditions.
     Ambient temperature                     23°C ±1°C
     Input waveform                           50 or 60Hz ±2%
     Input waveform                           Sinusoidal (distortion factor < 0·005)
     Magnetic field of external origin      Terrestrial flux
    Environment
     Operating temperature             -25°C to +55°C*
     Storage temperature               -40°C to +70°C*
     Relative humidity                   0 to 90%, non-condensing
     Altitude                               Up to 2000m
     Warm up time                      1 minute
     Vibration                             10Hz to 50Hz, IEC 60068-2-6, 2g